Rectangular Connectors - Headers, Male Pins

Part Number	Description / PDF	Quantity
M80-8661422 Harwin	CONN HEADER R/A 14POS 2MM	144
G125-MV21205L0P Harwin	CONN HEADER VERT 12POS 1.25MM	194
M20-9753646 Harwin	CONN HEADER R/A 36POS 2.54MM	1054
G125-MV15005M2P Harwin	CONN HEADER VERT 50POS 1.25MM	72
M50-3550542 Harwin	CONN HEADER VERT 10POS 1.27MM	217
M80-5302642 Harwin	CONN HEADER R/A 26POS 2MM	33
M80-5402642 Harwin	CONN HEADER R/A 26POS 2MM	0
M80-5103442 Harwin	CONN HEADER VERT 34POS 2MM	335
M80-8282642 Harwin	CONN HEADER SMD 26POS 2MM	253
M30-6100446 Harwin	CONN HEADER VERT 4POS 1.25MM	493
M20-9951246 Harwin	CONN HEADER R/A 24POS 2.54MM	0
M20-9950846 Harwin	CONN HEADER R/A 16POS 2.54MM	0
M20-8761846 Harwin	CONN HEADER SMD 36POS 2.54MM	0
M20-9750446 Harwin	CONN HEADER R/A 4POS 2.54MM	4117
M80-5L11242MC Harwin	CONN HEADER R/A 12POS 2MM	0
M22-2030905 Harwin	CONN HEADER R/A 9POS 2MM	105
M22-2580605 Harwin	CONN HEADER VERT 12POS 2MM	0
M80-5301422 Harwin	CONN HEADER R/A 14POS 2MM	28
G125-MV13405M2P Harwin	CONN HEADER VERT 34POS 1.25MM	54
M80-5132042 Harwin	CONN HEADER SMD 20POS 2MM	177

Rectangular Connectors - Headers, Male Pins

1. Overview

Rectangular connectors with male pins, commonly referred to as pin headers, are modular electrical interfaces featuring parallel rows of conductive prongs enclosed in a dielectric housing. These components enable reliable signal and power transmission between PCBs (Printed Circuit Boards), cables, and subsystems. Their standardized design, ease of assembly, and scalability make them critical in modern electronics, from consumer devices to industrial machinery.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Single-Row Headers	Linear arrangement, 0.1" pitch standard, low-cost solution	Prototyping boards, Arduino shields
Double-Row Headers	Parallel dual-row configuration, higher contact density	Industrial control systems, PLC modules
High-Density Headers	Sub-0.05" pitch, optimized for miniaturization	Smartphones, medical sensors
Right-Angle Headers	90 oriented pins for vertical space optimization	Automotive ECUs, server motherboards

3. Structure and Composition

Typical male pin headers consist of:

Contact System: Phosphor bronze or beryllium copper pins with gold-plated contact areas
Insulation Housing: High-temperature resistant LCP (Liquid Crystal Polymer) or nylon material
Mechanical Features: Polarization keying, anti-wobble design, and retention latches
Mounting Options: Through-hole, SMT (Surface Mount Technology), or press-fit terminations

The contacts are arranged in standardized grids (commonly 2.54mm/0.1" pitch) with polarization features to prevent mis-mating.

4. Key Technical Specifications

Parameter	Importance
Current Rating (Amps/contact)	0.5-10A determines power handling capability
Contact Resistance (m )	10-30m affects signal integrity and power efficiency
Dielectric Withstanding Voltage	100-1000V defines insulation reliability
Operating Temperature Range	-55 C to +125 C ensures environmental durability
Insertion Force (N)	0.5-5N impacts mating cycle longevity

5. Application Fields

Consumer Electronics: Laptops, gaming consoles, smart home devices
Automotive: ECU interconnects, sensor harnesses, infotainment systems
Industrial: CNC machine controllers, robotics interfaces
Medical: Diagnostic equipment, patient monitoring systems
Telecom: Base station hardware, fiber optic transceivers

6. Leading Manufacturers and Products

Manufacturer	Representative Product
TE Connectivity	AMPMODU 205796-1 (0.05" micro pitch header)
Molex	PicoBlade 0510210400 (ultra-compact wire-to-board connector)
Amphenol ICC	10118801-01 (high-speed differential pair header)
JAE Electronics	DF11 Series (0.5mm pitch FPC-to-PCB connector)

7. Selection Guidelines

Key considerations:

Electrical requirements (current/voltage rating)
Space constraints (pitch size and profile height)
Environmental conditions (temperature, vibration, moisture)
Termination method compatibility (through-hole vs SMT)
Expected mating cycles (durability requirements)
Cost vs performance trade-offs

Example: For automotive applications, select headers with AEC-Q200 certification and 3 m gold plating for vibration resistance.

8. Industry Trends

Miniaturization: Development of 0.3mm pitch connectors for wearable devices
High-Speed Performance: Optimization for 10+ Gbps data rates in 5G infrastructure
Modular Design: Integration with hybrid power/signal transmission capabilities
Sustainability: Adoption of halogen-free materials and RoHS compliance
Smart Manufacturing: Embedded RFID tags for connector lifecycle tracking